CN108609638A - A kind of technique of potassium feldspar and ardealite recycling aluminum acid coproduction Chinese cabbage special fertilizer - Google Patents
A kind of technique of potassium feldspar and ardealite recycling aluminum acid coproduction Chinese cabbage special fertilizer Download PDFInfo
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- CN108609638A CN108609638A CN201810713812.9A CN201810713812A CN108609638A CN 108609638 A CN108609638 A CN 108609638A CN 201810713812 A CN201810713812 A CN 201810713812A CN 108609638 A CN108609638 A CN 108609638A
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F7/00—Compounds of aluminium
- C01F7/02—Aluminium oxide; Aluminium hydroxide; Aluminates
- C01F7/04—Preparation of alkali metal aluminates; Aluminium oxide or hydroxide therefrom
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B17/00—Sulfur; Compounds thereof
- C01B17/69—Sulfur trioxide; Sulfuric acid
- C01B17/74—Preparation
- C01B17/76—Preparation by contact processes
- C01B17/78—Preparation by contact processes characterised by the catalyst used
- C01B17/79—Preparation by contact processes characterised by the catalyst used containing vanadium
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F7/00—Compounds of aluminium
- C01F7/02—Aluminium oxide; Aluminium hydroxide; Aluminates
- C01F7/04—Preparation of alkali metal aluminates; Aluminium oxide or hydroxide therefrom
- C01F7/06—Preparation of alkali metal aluminates; Aluminium oxide or hydroxide therefrom by treating aluminous minerals or waste-like raw materials with alkali hydroxide, e.g. leaching of bauxite according to the Bayer process
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F7/00—Compounds of aluminium
- C01F7/02—Aluminium oxide; Aluminium hydroxide; Aluminates
- C01F7/04—Preparation of alkali metal aluminates; Aluminium oxide or hydroxide therefrom
- C01F7/08—Preparation of alkali metal aluminates; Aluminium oxide or hydroxide therefrom by treating aluminous minerals with sodium carbonate, e.g. sinter processes
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F7/00—Compounds of aluminium
- C01F7/02—Aluminium oxide; Aluminium hydroxide; Aluminates
- C01F7/04—Preparation of alkali metal aluminates; Aluminium oxide or hydroxide therefrom
- C01F7/14—Aluminium oxide or hydroxide from alkali metal aluminates
- C01F7/141—Aluminium oxide or hydroxide from alkali metal aluminates from aqueous aluminate solutions by neutralisation with an acidic agent
- C01F7/142—Aluminium oxide or hydroxide from alkali metal aluminates from aqueous aluminate solutions by neutralisation with an acidic agent with carbon dioxide
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05C—NITROGENOUS FERTILISERS
- C05C5/00—Fertilisers containing other nitrates
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Abstract
The invention discloses the techniques that a kind of potassium feldspar and ardealite recycle aluminum acid coproduction Chinese cabbage special fertilizer, include the following steps：Ardealite, potassium feldspar, additive and modifying agent are mixed and ground, raw material are made, raw material roasted, clinker is made, dissolved out after clinker is ground, is separated by solid-liquid separation, CO is added into isolated liquid2White precipitate is obtained, aluminium oxide is made in roasting precipitation, carries out flotation to isolated filter residue, the sulfide floatingly selected is used to prepare sulfuric acid, and special fertilizer is made in the remaining residue of flotation and urea, fishbone dust, borax, zinc sulfate, manganese sulfate and cobalt nitrate.The present invention comprehensively utilizes potassium feldspar combination ardealite, has the added value for improving potassium feldspar and ardealite, and the destruction of the Chinese cabbage special fertilizer dialogue dish planting site soil ph of preparation is small, aluminium recovery and the high feature of purity.
Description
Technical field
The present invention relates to the techniques that a kind of potassium feldspar and ardealite recycle aluminum acid coproduction Chinese cabbage special fertilizer, belong to metallurgicalization
Work field.
Background technology
Chinese cabbage (Brassica rapa pekinensis) is biennial herb plant, and great Ye spends faint yellow, originates in me
State North China, various regions are often cultivated, especially based on the north.Basal leaf is used as vegetables, eats raw, cooks, and is northern area autumn, winter
Main vegetables, cultivated area and consumption figure are occupied in China first of all kinds of vegetables.
Ardealite refer in phosphoric acid production with sulfuric acid treating phosphorite when the solid slag that generates, main component is sulfuric acid
Calcium (CaSO4), content generally can reach 70~90% or so.In addition, ardealite also contains plurality of impurities：Undecomposed phosphorus
Mine, phosphoric acid, calcirm-fluoride, iron, aluminium compound, acid non-soluble substance, organic matter of non-washes clean etc..
Potash feldspar ore is that potassium content is higher, distribution is most wide, the maximum water-insoluble potassium resource of reserves, belongs to monoclinic system, is led to
Often in flesh-coloured yellowish-white equal colors, theoretical composition SiO264.7%, Al2O318.4%, K2O 16.9%, average oxidation potassium
Content about K2O 11.63%, reserves about 79.14 hundred million t, is mainly used for glass, ceramics, it may also be used for produce potash fertilizer, quality
Preferable potassium feldspar is for manufacturing TV imaging glass bulb etc..
It is existing currently, in the fertilizer that Chinese cabbage plantation uses, mainly using potash fertilizer and calcareous fertilisers as main base manure, mixing urea,
It is prepared after the ingredients such as fishbone dust, borax, zinc sulfate, manganese sulfate and cobalt nitrate, and conventional potash fertilizer and calcareous fertilisers is pure potassium
Fertilizer and calcium fertilizer, such as potassium chloride, potassium sulfate, potassium dihydrogen phosphate and calcium nitrate, calcium sulfate and calcium dihydrogen phosphate, it is this kind of
The potassium calcium base manure manufacturing cost of pure element is higher, for this purpose, due in ardealite and potassium feldspar respectively contain a large amount of calcium constituent and
Potassium element, meanwhile, waste residue when ardealite is prepared as phosphoric acid can cause environment serious destruction, and potassium feldspar is as main
A kind of sylvite ore, the content in nature is larger, and use cost is relatively low so that ardealite and potassium feldspar become system
The new selection of standby potassium calcium base manure.
It is directly by ardealite and feldspar in powder but now at present in ardealite and potassium feldspar prepare the technique of fertilizer
It is prepared after being mixed with other compositions after broken, due to containing a large amount of element sulphur in ardealite, and containing a large amount of in potassium feldspar
Aluminium ion, aluminium ion is easy to form aluminium hydroxide, makes to release hydrogen ion in soil after entering in soil, destroys the acid of soil
Alkalinity influences the growth of crop, meanwhile, aluminium element and element sulphur are not recycled further, and phosphorus is greatly reduced
The added value of gypsum and potassium feldspar.
For this purpose, this researcher is analyzed by component content to potassium feldspar and ardealite and chemical characteristic, study
A kind of comprehensive processing technique of ardealite and potassium feldspar, can greatly improve the added value of ardealite and potassium feldspar, it is made to have
Valence ingredient is fully used, and the growth of Chinese cabbage is combined to need, and Chinese cabbage special fertilizer has been made, wherein passing through this process
Aluminium ion is recycled afterwards, greatly reduces the destruction of special fertilizer dialogue dish planting site soil ph, it is right
The utilization of residue phosphogypsum and potassium feldspar provides a kind of new approaches.
Goal of the invention
The object of the present invention is to provide the works that a kind of potassium feldspar and ardealite recycle aluminum acid coproduction Chinese cabbage special fertilizer
Skill.The present invention comprehensively utilizes potassium feldspar combination ardealite, has the added value for improving potassium feldspar and ardealite, preparation
The destruction of Chinese cabbage special fertilizer dialogue dish planting site soil ph is small, aluminium recovery and the high feature of purity.
Technical scheme of the present invention
A kind of technique of potassium feldspar and ardealite recycling aluminum acid coproduction Chinese cabbage special fertilizer, which is characterized in that including as follows
Step：
A, feldspar in powder is broken to after 150-180 mesh and is mixed and made into raw material, control life with ardealite, additive and modifying agent
The weight ratio of ardealite and potassium feldspar is 1 in material：0.6-1.3, the adding proportion of additive is by contained Na in raw material2O and A12O3+
Fe2O3The molecular proportion of summation is 1:1 addition, the mixed proportion of modifying agent are the 13-21% of raw material total weight；Raw material are sent into kiln
Clinker is made in interior roasting；
B, it will dissolve out, and be separated by solid-liquid separation after clinker water mill made from step A；
C, CO is added in the liquid being separated by solid-liquid separation into step B2Gas is no longer generated to white precipitate, then will be white
Color precipitation filters out rear cleaning, drying, obtains aluminium hydroxide, and by the Aluminium hydroxide roasting of gained, aluminium oxide is made；
D, the filter residue flotation that will be separated by solid-liquid separation in step B, floatingly selects sulfide, and sulfide is roasted, the cigarette of generation
Pneumatic transmission, which enters in sulfuric acid preparation system, prepares sulfuric acid；
E, by weight, remaining residue 60-80 parts of flotation in step D are taken, are added in blender, then into batch mixer
40-60 parts of urea, 60-70 portions of fishbone dusts, 3-7 parts of boraxs, 1-4 parts of zinc sulfate, 1-3 parts of manganese sulfates and 1-2 parts of cobalt nitrates are added
It is stirred, then air-dries, then put into comminutor and be granulated, you can Chinese cabbage special fertilizer is made.
The technique of potassium feldspar and ardealite above-mentioned recycling aluminum acid coproduction Chinese cabbage special fertilizer, in step A, the potassium is long
In stone by mass percentage, include K2O 10-18%, Al2O316-20% and SiO260-70%；The additive
For sodium carbonate, sodium sulphate or caustic soda；The modifying agent is anthracite, carbon or gangue.
The technique of potassium feldspar and ardealite above-mentioned recycling aluminum acid coproduction Chinese cabbage special fertilizer, in step A, the kiln is
Industrial rotary kiln, Industry Tunnel Kiln or industrial shaft kiln.
The technique of potassium feldspar and ardealite above-mentioned recycling aluminum acid coproduction Chinese cabbage special fertilizer, in step A, the raw material
It is to be roasted 2-5 hours at 800-1200 DEG C of temperature.
The technique of potassium feldspar and ardealite above-mentioned recycling aluminum acid coproduction Chinese cabbage special fertilizer, the liquid solid when dissolution
Product is than being 4-7:1.
The technique of potassium feldspar and ardealite above-mentioned recycling aluminum acid coproduction Chinese cabbage special fertilizer, in step C, the temperature of roasting
It it is 800-900 DEG C, the time is 2-4 hours.
The technique of potassium feldspar and ardealite above-mentioned recycling aluminum acid coproduction Chinese cabbage special fertilizer is that will floatingly select in step D
Sulfide be placed under the oxygen-enriched environment of 40-46%, roasted 1-3 hours at 800-1000 DEG C, roast the flue gas of generation through five
It is absorbed with the concentrated sulfuric acid after V 2 O catalysis reaction and sulfuric acid is made.
The technique of potassium feldspar and ardealite above-mentioned recycling aluminum acid coproduction Chinese cabbage special fertilizer, in step E, the stirring
Time is 5-10 minutes.
The technique of potassium feldspar and ardealite above-mentioned recycling aluminum acid coproduction Chinese cabbage special fertilizer, in step E, by weight
Meter, the Chinese cabbage special fertilizer includes 65-75 parts, 45-55 parts urea of residue, 63-67 portions of fishbone dusts, 4-6 parts of boraxs, 1.5-3.5
Part zinc sulfate, 1.5-2.5 parts of manganese sulfates and 1.2-1.8 parts of cobalt nitrates.
The technique of potassium feldspar and ardealite recycling aluminum acid coproduction Chinese cabbage special fertilizer above-mentioned, it is by weight, described white
Dish special fertilizer includes 70 parts, 50 parts urea of residue, 65 portions of fishbone dusts, 5 parts of boraxs, 2.5 parts of zinc sulfate, 2 parts of manganese sulfates and 1.5 parts
Cobalt nitrate.
In the present invention, ardealite and potassium feldspar react, shown in the principle following reaction formula of recombination：
CaSO4(ardealite)+K2O·SiO2·Al2O3(potassium feldspar)+additive+modifying agent → Na2O·Al2O3+CaO·
SiO2↓+【S】
From the reaction equation it is found that with the SiO in the CaO and potassium feldspar in ardealite2Generate calcium orthosilicate (2CaOSiO2
↓) after, obtain soluble fabulous sodium aluminate (Na2O·Al2O3), it is therein【S】For sulfide, predominantly iron sulfide and vulcanization
Potassium etc..
Advantageous effect
1, the present invention is using ardealite and potassium feldspar as primary raw material, and water mill is molten after adding modifying agent and additive roasting
Go out, be separated by solid-liquid separation, CO is passed through to isolated liquid2After gas, you can recycling aluminium, isolated filter residue obtain sulphur through flotation
Compound, the flue gas of sulfide roasting, which is passed through in the concentrated sulfuric acid, can be obtained sulfuric acid, and it is equal that flotation residue adds the mixing of other fertilizer components
Even to can be obtained Chinese cabbage special fertilizer, simple for process, cost of material is low, opens the new side of ardealite and potassium feldspar comprehensive utilization
To.Simultaneously as this technique has not only carried out effective recycling to the aluminium in potassium feldspar, acid is also recycled and to be prepared for Chinese cabbage special
Potash-lime fertilizer substantially increases the added value of ardealite and potassium feldspar.
2, the present invention divides by the baking mixed rear separation of solid and liquid of potassium feldspar and ardealite and additive and modifying agent, then by solid-liquid
From obtaining after filter residue floatingly selects sulfide, a large amount of potassium and calcium being contained in the residue after flotation, can directly do the use of potassium calcium base manure,
It is required according to the need fertilizer of Chinese cabbage, fishbone dust, borax, zinc sulfate, manganese sulfate and the cobalt nitrate for being rationally equipped with urea, P elements being provided
And mixing, it is granulated, you can Chinese cabbage special fertilizer is made, which is very suitable for the plantation of Chinese cabbage, and the aluminium in potassium feldspar obtains
Recycling, avoids the destruction of metallic aluminium ion pair soil, improves the fertilizer efficiency of Chinese cabbage special fertilizer.
3, the present invention first roasts potassium feldspar, ardealite, additive and modifying agent, and product is without organic after roasting
Object is easily isolated, then can be obtained the clearly demarcated product of ingredient after water mill dissolves out and is separated by solid-liquid separation, product be mainly silicate,
Metal sulfide and sodium aluminate almost contain only the sodium aluminate for being highly soluble in water in isolated liquid, are passed through CO2After be
The aluminium product of recyclable high-purity, while this method has very high aluminium recovery.
For the effect of the detection present invention, inventor has done following experiment：
The rate of recovery and purity of aluminium oxide obtained in embodiment 1-5 are detected respectively, the results are shown in Table 1：
Table 1
| Project | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 |
| The rate of recovery/% | 95.4 | 95.7 | 95.2 | 95.4 | 96.2 |
| Purity/% | 99.3 | 99.6 | 99.5 | 99.4 | 99.2 |
It is applied fertilizer respectively using Chinese cabbage special fertilizer No. 3 Chinese cabbage white to Shandong obtained by embodiment 1-5, meanwhile, it utilizes
Control group 1 is fabricated to after the direct mixing urea of potassium feldspar, fishbone dust, borax, zinc sulfate, manganese sulfate and cobalt nitrate to apply fertilizer,
It 2 is applied fertilizer as a control group using Common compound fertilizer, the main component of Common compound fertilizer is urea, phosphorus ammonium and potassium chloride,
Middle nitrogen, phosphorus and potassium available nutrient content >=25%；Fertilization mode is in identical with a piece of Chinese cabbage the subregion of acid-base property with respectively
Group fertilizer carries out conventional fertilizer application to Chinese cabbage maturation respectively, during which measures the pH value of corresponding white vegetable field soil in five times；Meanwhile it receiving
After obtaining, calculates the yield-increasing efficiency of each group and carry high Vc content.The results are shown in table below for it：
Table 2
| Project | Yield-increasing efficiency (%) | Carry high Vc content (%) | PH range |
| Embodiment 1 | 8.6 | 6.2 | 6.5-7.6 |
| Embodiment 2 | 8.7 | 6.3 | 6.6-7.4 |
| Embodiment 3 | 8.4 | 6.5 | 6.4-7.3 |
| Embodiment 4 | 8.5 | 6.4 | 6.3-7.5 |
| Embodiment 5 | 9.1 | 6.7 | 6.5-7.4 |
| Control group 1 | 6.2 | 4.2 | 6.2-6.8 |
| Control group 2 | 6.5 | 4.3 | 6.2-7.4 |
It is evident that the effect of Chinese cabbage special fertilizer produced by the present invention is better than the effect of Common compound fertilizer from table 2.Make
With the present invention fertilizer after, the quality and yield of Chinese cabbage are significantly improved, this is because the acid-base property of soil not by
It destroys, the soil of the pH value in the section is more favorable for absorption of the Chinese cabbage to fertilizer elements such as potassium, calcium and therefore increases yield.
And for manufactured fertilizer after fertilising, the soda acid for destroying soil is flat after directly utilizing potassium feldspar and ardealite mixing other elements
Weighing apparatus, keeps soil weakly acidic, is unfavorable for the absorption of fertilizer efficiency, yield-increasing efficiency is not high.
Specific implementation mode
With reference to embodiment, the present invention is further illustrated, but is not intended as the foundation limited the present invention.
The embodiment of the present invention
In potassium feldspar in the following example, by mass percentage, main component be include K2O 10-18%,
Al2O316-20% and SiO260-70%.
Embodiment 1：
A kind of technique of potassium feldspar and ardealite recycling aluminum acid coproduction Chinese cabbage special fertilizer, steps are as follows：
A, feldspar in powder is broken to after 150 mesh and is mixed and made into raw material with ardealite, caustic soda and carbon, control ardealite in raw material
Weight ratio with potassium feldspar is 1：0.6, the adding proportion of caustic soda is by contained Na in raw material2O and A12O3+Fe2O3The molecular proportion of summation
It is 1:1 addition, the mixed proportion of carbon are the 13% of raw material total weight；Raw material are sent into Industry Tunnel Kiln, are roasted at 800 DEG C
5 hours, clinker is made；
B, it will be dissolved out after clinker water mill made from step A, it is 4 that liquid when control dissolves out, which consolidates volume ratio,:1, and carry out solid-liquid
Separation；
C, CO is added in the liquid being separated by solid-liquid separation into step B2Gas is no longer generated to white precipitate, then will be white
Color precipitation filters out rear cleaning, drying, obtains aluminium hydroxide, the aluminium hydroxide of gained is roasted 4 hours at 800 DEG C.
D, the filter residue flotation that will be separated by solid-liquid separation in step B, floatingly selects sulfide, and sulfide is placed in 40% oxygen-enriched ring
It under border, is roasted 3 hours at 800 DEG C, the flue gas for roasting generation is made after vanadic anhydride catalysis reaction with concentrated sulfuric acid absorption
Sulfuric acid
E, by weight, 60 parts of the remaining residue of flotation in step D is taken, is added in blender, then is added into batch mixer
Enter 40 parts of urea, 60 portions of fishbone dusts, 3 parts of boraxs, 1 part of zinc sulfate, 1 part of manganese sulfate and 1 part of cobalt nitrate and stir 5 minutes, then wind
It is dry, then put into comminutor and be granulated, you can Chinese cabbage special fertilizer is made.
Embodiment 2：
A kind of technique of potassium feldspar and ardealite recycling aluminum acid coproduction Chinese cabbage special fertilizer, steps are as follows：
A, feldspar in powder is broken to after 180 mesh and is mixed and made into raw material with ardealite, caustic soda and carbon, control ardealite in raw material
Weight ratio with potassium feldspar is 1：1.3, the adding proportion of caustic soda is by contained Na in raw material2O and A12O3+Fe2O3The molecular proportion of summation
It is 1:1 addition, the mixed proportion of carbon are the 21% of raw material total weight；Raw material are sent into Industry Tunnel Kiln, are roasted at 1200 DEG C
It burns 2 hours, clinker is made；
B, it will be dissolved out after clinker water mill made from step A, it is 7 that liquid when control dissolves out, which consolidates volume ratio,:1, and carry out solid-liquid
Separation；
C, CO is added in the liquid being separated by solid-liquid separation into step B2Gas is no longer generated to white precipitate, then will be white
Color precipitation filters out rear cleaning, drying, obtains aluminium hydroxide, the aluminium hydroxide of gained is roasted 2 hours at 900 DEG C.
D, the filter residue flotation that will be separated by solid-liquid separation in step B, floatingly selects sulfide, and sulfide is placed in 46% oxygen-enriched ring
It under border, is roasted 1 hour at 1000 DEG C, the flue gas for roasting generation is made after vanadic anhydride catalysis reaction with concentrated sulfuric acid absorption
Sulfuric acid
E, by weight, 80 parts of the remaining residue of flotation in step D is taken, is added in blender, then is added into batch mixer
Enter 60 parts of urea, 70 portions of fishbone dusts, 7 parts of boraxs, 4 parts of zinc sulfate, 3 parts of manganese sulfates and 2 parts of cobalt nitrates and stir 10 minutes, then wind
It is dry, then put into comminutor and be granulated, you can Chinese cabbage special fertilizer is made.
Embodiment 3：
A kind of technique of potassium feldspar and ardealite recycling aluminum acid coproduction Chinese cabbage special fertilizer, steps are as follows：
A, feldspar in powder is broken to after 160 mesh and is mixed and made into raw material with ardealite, caustic soda and carbon, control ardealite in raw material
Weight ratio with potassium feldspar is 1：0.8, the adding proportion of caustic soda is by contained Na in raw material2O and A12O3+Fe2O3The molecular proportion of summation
It is 1:1 addition, the mixed proportion of carbon are the 15% of raw material total weight；Raw material are sent into Industry Tunnel Kiln, are roasted at 900 DEG C
4.5 hours, clinker is made；
B, it will be dissolved out after clinker water mill made from step A, it is 5 that liquid when control dissolves out, which consolidates volume ratio,:1, and carry out solid-liquid
Separation；
C, CO is added in the liquid being separated by solid-liquid separation into step B2Gas is no longer generated to white precipitate, then will be white
Color precipitation filters out rear cleaning, drying, obtains aluminium hydroxide, the aluminium hydroxide of gained is roasted 3 hours at 850 DEG C.
D, the filter residue flotation that will be separated by solid-liquid separation in step B, floatingly selects sulfide, and sulfide is placed in 42% oxygen-enriched ring
It under border, is roasted 2.5 hours at 850 DEG C, the flue gas for roasting generation absorbs system after vanadic anhydride catalysis reaction with the concentrated sulfuric acid
Obtain sulfuric acid
E, by weight, 65 parts of the remaining residue of flotation in step D is taken, is added in blender, then is added into batch mixer
Enter 45 parts of urea, 63 portions of fishbone dusts, 4 parts of boraxs, 1.5 parts of zinc sulfate, 1.5 parts of manganese sulfates and 1.2 parts of cobalt nitrates to stir 6 minutes,
Then it air-dries, then puts into comminutor and be granulated, you can Chinese cabbage special fertilizer is made.
Embodiment 4：
A kind of technique of potassium feldspar and ardealite recycling aluminum acid coproduction Chinese cabbage special fertilizer, steps are as follows：
A, feldspar in powder is broken to after 170 mesh and is mixed and made into raw material with ardealite, caustic soda and carbon, control ardealite in raw material
Weight ratio with potassium feldspar is 1：1.1, the adding proportion of caustic soda is by contained Na in raw material2O and A12O3+Fe2O3The molecular proportion of summation
It is 1:1 addition, the mixed proportion of carbon are the 18% of raw material total weight；Raw material are sent into Industry Tunnel Kiln, are roasted at 1100 DEG C
It burns 2.5 hours, clinker is made；
B, it will be dissolved out after clinker water mill made from step A, it is 6 that liquid when control dissolves out, which consolidates volume ratio,:1, and carry out solid-liquid
Separation；
C, CO is added in the liquid being separated by solid-liquid separation into step B2Gas is no longer generated to white precipitate, then will be white
Color precipitation filters out rear cleaning, drying, obtains aluminium hydroxide, the aluminium hydroxide of gained is roasted 3.5 hours at 880 DEG C.
D, the filter residue flotation that will be separated by solid-liquid separation in step B, floatingly selects sulfide, and sulfide is placed in 44% oxygen-enriched ring
It under border, is roasted 1.5 hours at 950 DEG C, the flue gas for roasting generation absorbs system after vanadic anhydride catalysis reaction with the concentrated sulfuric acid
Obtain sulfuric acid
E, by weight, 75 parts of the remaining residue of flotation in step D is taken, is added in blender, then is added into batch mixer
Enter 55 parts of urea, 67 portions of fishbone dusts, 6 parts of boraxs, 3.5 parts of zinc sulfate, 2.5 parts of manganese sulfates and 1.8 parts of cobalt nitrates to stir 9 minutes,
Then it air-dries, then puts into comminutor and be granulated, you can Chinese cabbage special fertilizer is made.
Embodiment 5：
A kind of technique of potassium feldspar and ardealite recycling aluminum acid coproduction Chinese cabbage special fertilizer, steps are as follows：
A, feldspar in powder is broken to after 165 mesh and is mixed and made into raw material with ardealite, caustic soda and carbon, control ardealite in raw material
Weight ratio with potassium feldspar is 1：0.95, the adding proportion of caustic soda is by contained Na in raw material2O and A12O3+Fe2O3The molecule of summation
Than being 1:1 addition, the mixed proportion of carbon are the 17% of raw material total weight；Raw material are sent into Industry Tunnel Kiln, at 1000 DEG C
Clinker is made in roasting 3.5 hours；
B, it will be dissolved out after clinker water mill made from step A, it is 5 that liquid when control dissolves out, which consolidates volume ratio,:1, and carry out solid-liquid
Separation；
C, CO is added in the liquid being separated by solid-liquid separation into step B2Gas is no longer generated to white precipitate, then will be white
Color precipitation filters out rear cleaning, drying, obtains aluminium hydroxide, the aluminium hydroxide of gained is roasted 3 hours at 850 DEG C.
D, the filter residue flotation that will be separated by solid-liquid separation in step B, floatingly selects sulfide, and sulfide is placed in 43% oxygen-enriched ring
It under border, is roasted 2 hours at 900 DEG C, the flue gas for roasting generation is made after vanadic anhydride catalysis reaction with concentrated sulfuric acid absorption
Sulfuric acid
E, by weight, 70 parts of the remaining residue of flotation in step D is taken, is added in blender, then is added into batch mixer
Enter 50 parts of urea, 65 portions of fishbone dusts, 5 parts of boraxs, 2.5 parts of zinc sulfate, 2 parts of manganese sulfates and 1.5 parts of cobalt nitrates to stir 7.5 minutes,
Then it air-dries, then puts into comminutor and be granulated, you can Chinese cabbage special fertilizer is made.
Claims (10)
1. the technique of a kind of potassium feldspar and ardealite recycling aluminum acid coproduction Chinese cabbage special fertilizer, which is characterized in that including walking as follows
Suddenly：
A, feldspar in powder is broken to after 150-180 mesh and is mixed and made into raw material with ardealite, additive and modifying agent, controlled in raw material
The weight ratio of ardealite and potassium feldspar is 1：0.6-1.3, the adding proportion of additive is by contained Na in raw material2O and A12O3+Fe2O3
The molecular proportion of summation is 1:1 addition, the mixed proportion of modifying agent are the 13-21% of raw material total weight；Raw material are sent into kiln and are roasted
It burns, clinker is made；
B, it will dissolve out, and be separated by solid-liquid separation after clinker water mill made from step A；
C, CO is added in the liquid being separated by solid-liquid separation into step B2Gas is no longer generated to white precipitate, then that white is heavy
Shallow lake filters out rear cleaning, drying, obtains aluminium hydroxide, and by the Aluminium hydroxide roasting of gained, aluminium oxide is made；
D, the filter residue flotation that will be separated by solid-liquid separation in step B, floatingly selects sulfide, and sulfide is roasted, and the flue gas of generation is sent
Enter in sulfuric acid preparation system and prepares sulfuric acid；
E, by weight, remaining residue 60-80 parts of flotation in step D are taken, are added in blender, then be added into batch mixer
40-60 parts of urea, 60-70 portions of fishbone dusts, 3-7 parts of boraxs, 1-4 parts of zinc sulfate, 1-3 parts of manganese sulfates and 1-2 parts of cobalt nitrates carry out
Stirring, then air-dries, then put into comminutor and be granulated, you can Chinese cabbage special fertilizer is made.
2. the technique of potassium feldspar according to claim 1 and ardealite recycling aluminum acid coproduction Chinese cabbage special fertilizer, feature
It is：Include K in the potassium feldspar by mass percentage in step A2O 10-18%、Al2O3 16-20% and SiO2
60-70%；The additive is sodium carbonate, sodium sulphate or caustic soda；The modifying agent is anthracite, carbon or gangue.
3. the technique of potassium feldspar according to claim 1 and ardealite recycling aluminum acid coproduction Chinese cabbage special fertilizer, feature
It is：In step A, the kiln is industrial rotary kiln, Industry Tunnel Kiln or industrial shaft kiln.
4. the technique of potassium feldspar according to claim 1 and ardealite recycling aluminum acid coproduction Chinese cabbage special fertilizer, feature
It is：In step A, the raw material are roasted 2-5 hours at 800-1200 DEG C of temperature.
5. the technique of potassium feldspar according to claim 1 and ardealite recycling aluminum acid coproduction Chinese cabbage special fertilizer, feature
It is：It is 4-7 that liquid when the dissolution, which consolidates volume ratio,:1.
6. the technique of potassium feldspar according to claim 1 and ardealite recycling aluminum acid coproduction Chinese cabbage special fertilizer, feature
It is：In step C, the temperature of roasting is 800-900 DEG C, and the time is 2-4 hours.
7. the technique of potassium feldspar according to claim 1 and ardealite recycling aluminum acid coproduction Chinese cabbage special fertilizer, feature
It is：It is that the sulfide that will be floatingly selected is placed under the oxygen-enriched environment of 40-46% in step D, it is small that 1-3 is roasted at 800-1000 DEG C
When, the flue gas for roasting generation absorbs obtained sulfuric acid after vanadic anhydride catalysis reaction with the concentrated sulfuric acid.
8. the technique of potassium feldspar according to claim 1 and ardealite recycling aluminum acid coproduction Chinese cabbage special fertilizer, feature
It is：In step E, the time of the stirring is 5-10 minutes.
9. the technique of potassium feldspar according to claim 1 and ardealite recycling aluminum acid coproduction Chinese cabbage special fertilizer, feature
It is：In step E, by weight, the Chinese cabbage special fertilizer includes 65-75 parts of residues, 45-55 parts of urea, 63-67 parts of fish-bones
Powder, 4-6 part borax, 1.5-3.5 parts of zinc sulfate, 1.5-2.5 parts of manganese sulfates and 1.2-1.8 parts of cobalt nitrates.
10. the technique of potassium feldspar according to claim 9 and ardealite recycling aluminum acid coproduction Chinese cabbage special fertilizer, feature
It is：By weight, the Chinese cabbage special fertilizer include 70 parts of residues, 50 parts of urea, 65 portions of fishbone dusts, 5 parts of boraxs, 2.5 parts
Zinc sulfate, 2 parts of manganese sulfates and 1.5 parts of cobalt nitrates.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1086507A (en) * | 1993-11-22 | 1994-05-11 | 刘成才 | A kind of long-lasting complete-nutrition composite fertilizer |
| CN104498050A (en) * | 2014-12-24 | 2015-04-08 | 金正大诺泰尔化学有限公司 | Method for production of high-activity soil conditioner and co-production of sulfuric acid employing phosphorus gypsum and potassium feldspar |
| CN105271333A (en) * | 2015-11-18 | 2016-01-27 | 中南大学 | Method for preparing monopotassium phosphate and aluminum hydroxide through potassium feldspar |
-
2018
- 2018-07-03 CN CN201810713812.9A patent/CN108609638A/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1086507A (en) * | 1993-11-22 | 1994-05-11 | 刘成才 | A kind of long-lasting complete-nutrition composite fertilizer |
| CN104498050A (en) * | 2014-12-24 | 2015-04-08 | 金正大诺泰尔化学有限公司 | Method for production of high-activity soil conditioner and co-production of sulfuric acid employing phosphorus gypsum and potassium feldspar |
| CN105271333A (en) * | 2015-11-18 | 2016-01-27 | 中南大学 | Method for preparing monopotassium phosphate and aluminum hydroxide through potassium feldspar |
Non-Patent Citations (1)
| Title |
|---|
| 厉衡隆等: "《铝冶炼生产技术手册》", 31 July 2011, 冶金工业出版社 * |
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